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ICLASS 94<br>Proceedings of the Sixth International Conference on Liquid Atomization and Spray Systems

ISBN:
978-1-56700-019-1 (Print)
978-1-56700-445-5 (Online)

LIQUID SHEET DISINTEGRATION IN FAN-SPRAY PRESSURE ATOMIZATION

Franz Durst
FMP TECHNOLOGY GMBH, Am Weichselgarten 34, 91058 Erlangen, Germany

Joachim Domnick
Hochschule Esslingen, University of Applied Sciences, Germany

V. Dorfner
Lehrstuhl für Strömungsmechanik, Universität Erlangen-Nürnberg, Erlangen, Germany

Abstract

To clarify the influence of fluid properties on the disintegration of wavy liquid sheets a new measuring technique could be developed, which allows to measure directly characteristic frequencies, wavelengths and wave travel velocities of disturbancies on moving sheets. This measuring technique has been applied to a small fan spray atomizer. Successful measurements were performed using liquids with different viscosities and surface tensions. Furthermore, the liquid sheet velocities before break-up as well as the size and velocity distributions of the droplets after film break-up could be obtained by additional LDA and PDA measurements